Remote control or connected with external push switch to achieve on/off and dimming functionUltra sensitive brightness adjustment Contact slideSmooth dimming and switch without any flickeringAuto- mitting function: Controller automaticly mit signal to another controller with 30m control distanceSynchronize on multiple number of controllers.Magnet on the back which can be easily stuck on back holder or any metal surfacesMatch Guide:The dimmer can match with all kinds of single or multiple zone 2.4G dimming remote controller.Choice 1: Use Match key1. Match: Short match key, within 5s, on/off key of the remote.2. Delete: Long match key for 5s, delete all matched remote.Choice 2: Use Power-up1. Match: Switch off the power, then switch on power again,short on/off key 3 times on the remote quickly within 5s after power on, is done once the light blinks 3 times.2. Delete: Switch off the power, then switch on power again,short on/off key or zone key 5 times on the remote quickly within 5s after power on,the unlink is done once the light blinks 5 times.colour:white + blackMaterial:plasticsize:97x33x18mmPackage Contents:1 x V1 LED Dimmer1 x R11 RemoteOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.